EP 0735057 B1 19980513 - Catalysts for the production of polyolefins
Title (en)
Catalysts for the production of polyolefins
Title (de)
Katalysatore für die Olefinherstellung
Title (fr)
Catalyseurs pour la polymérisation d'oléfines
Publication
Application
Priority
US 41296495 A 19950329
Abstract (en)
[origin: US5527752A] A catalyst precursor is provided which is useful, when combined with a cocatalyst, in the manufacture of polyolefins. The catalyst precursor is of the formula: <IMAGE> where M is a transition metal, preferably Zr or Hf; L is a substituted or unsubstituted, pi bonded ligand coordinated to M, preferably a cyclopentadienyl-type ligand; Q can be the same or different and is independently selected from the group consisting of -O, -NR, -CR2 and -S; Y is either C or S; Z is selected from the group consisting of -OR, -NR2, -CR3, -SR, -SiR3, -PR2 or H; n is 1 or 2; A is a univalent anionic group when n is 2 or W is a divalent anionic group when n is 1; R can be the same or different and is independently a group containing carbon, silicon, nitrogen, oxygen, and/or phosphorus where one or more R groups may be attached to the L substituent, preferably R is a hydrocarbon group containing from 1 to 20 carbon atoms, most preferably an alkyl, cycloalkyl or an aryl group and one or more may be attached to the L substituent; B is a bridging group selected from the group consisting of an alkylene or arylene group containing from 1 to 10 carbon atoms, germanium, silicon and alkyl phosphine; and m is 1 to 7, preferably 2 to 6, most preferably 2 or 3.
IPC 1-7
IPC 8 full level
C07F 7/30 (2006.01); C07F 17/00 (2006.01); C08F 4/42 (2006.01); C08F 4/60 (2006.01); C08F 4/64 (2006.01); C08F 4/642 (2006.01); C08F 4/6592 (2006.01); C08F 10/00 (2006.01); C08F 10/02 (2006.01); C08F 4/659 (2006.01); C08F 110/02 (2006.01); C08F 210/16 (2006.01)
CPC (source: EP KR US)
C08F 4/64 (2013.01 - KR); C08F 10/00 (2013.01 - EP KR US); C08F 10/02 (2013.01 - EP US); C08F 4/65912 (2013.01 - EP US); C08F 4/65916 (2013.01 - EP US); C08F 4/6592 (2013.01 - EP US); C08F 4/65925 (2013.01 - EP US); C08F 110/02 (2013.01 - EP US); C08F 210/16 (2013.01 - EP US)
C-Set (source: EP US)
Designated contracting state (EPC)
AT BE DE ES FR GB GR IT NL PT SE
DOCDB simple family (publication)
EP 0735057 A1 19961002; EP 0735057 B1 19980513; AR 001464 A1 19971022; AT E166073 T1 19980515; AU 5038196 A 19961010; AU 698339 B2 19981029; BR 9601208 A 19980106; CA 2173007 A1 19960930; CA 2173007 C 19990824; CN 1138050 A 19961218; CN 1173506 A 19980218; CZ 93896 A3 19961016; DE 69600281 D1 19980618; DE 69600281 T2 19980924; EG 21088 A 20001031; ES 2117471 T3 19980801; HU 9600822 D0 19960528; HU P9600822 A2 19970428; HU P9600822 A3 19970929; JP 3157457 B2 20010416; JP H08269121 A 19961015; KR 100273946 B1 20001215; KR 960035724 A 19961024; MY 115009 A 20030331; MY 132199 A 20070928; PL 313555 A1 19960930; RU 2142953 C1 19991220; SK 42196 A3 19970305; TR 199600261 A2 19961021; UA 61874 C2 20031215; US 5527752 A 19960618; ZA 962557 B 19961024; ZA 962558 B 19961003
DOCDB simple family (application)
EP 96302268 A 19960329; AR 33596396 A 19960329; AT 96302268 T 19960329; AU 5038196 A 19960329; BR 9601208 A 19960329; CA 2173007 A 19960329; CN 96108011 A 19960328; CN 97105424 A 19970526; CZ 93896 A 19960329; DE 69600281 T 19960329; EG 27096 A 19960328; ES 96302268 T 19960329; HU P9600822 A 19960329; JP 9961596 A 19960329; KR 19960009330 A 19960329; MY PI9601150 A 19960327; MY PI9601189 A 19960329; PL 31355596 A 19960329; RU 96106049 A 19960329; SK 42196 A 19960329; TR 9600261 A 19960329; UA 96031215 A 19960328; US 41296495 A 19950329; ZA 962557 A 19960329; ZA 962558 A 19960329